Haven't made signatures for like 2 years (oh well, perhaps like 10, but nearly nothing). So, I was bored today and entered Photoshop. I'd like some comments on it :]
Very nice. You did a great job with the color and texture mixing. Looks very abstract and cool. Good job.
Well if that thing in the center is supposed to stick out you failed. Otherwise it looks like a background with a border. But that doesn't mean it's bad.
Seems you've failed at depth and lighting in this tag... Oversharpened at some parts and overcontrasted.